Everything You Need to Know about Narcissists, Psychopaths, and Abuse - click on this link: http://www.narcissistic-abuse.com/faq1.html
Abusive conduct is not a uniform, homogeneous phenomenon. It stems and emanates from multiple sources and manifests in myriad ways. Following are a few useful distinctions which pertain to abuse and could serve as organizing, taxonomical principles (dimensional typologies) in a kind of matrix of pain.
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase the print book, or 16 e-books, or 3 DVDs with 16 hours of video lectures on narcissists, psychopaths, and abuse in relationships: http://www.narcissistic-abuse.com/thebook.html)